Right now for me its about 6 hours boxing, 4 hours mma (which I see as 10 hours of fighting), 30-40 min of strength (1 session), 1-3 sessions of 30-40min of conditioning with a focus towards muscle endurance. The reason I put focus towards muscle endurance is that it is imparing me in the fight gym. As soon as it dont bother me more focus will go towards strength and anaerobic conditioning.
So to conclude, for most, outside the fight gym you propably get most bang for your buck from strength training, but you should work from a perspective that you need to get as much as posible from your skill sessions. If your conditioning is to low so you cant focus on the skills in the fight gym, you need to prioritise it before strength and put stength on maintenance.
Its been a long day so I hope im not speaking out of my arse here..